Optical filter wheel for a microscope



FIG. 1 is an elevated, front perspective view of a first embodiment of a optical filter wheel for a microscope according to our design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a left side view thereof; and

FIG. 7 is a rear view thereof.

FIG. 8 is an elevated, front perspective view of a second embodiment of the optical filter wheel for a microscope according to our design;

FIG. 9 is a top view thereof;

FIG. 10 is a bottom view thereof;

FIG. 11 is a right side view thereof;

FIG. 12 is a front view thereof;

FIG. 13 is a left side view thereof; and,

FIG. 14 is a rear view thereof. 

The ornamental design for an optical filter wheel for a microscope, as shown and described. 